Tubing hanger



July 23, 19:29. X 7 1,722,053

- TUBING HANGER Filed Nov. 6, 1926 Patented July 23, .1929. 7

UNITED STATES PATENT OFFICE.

JOHN D. LIilMEX, OF TULSA, OKLAHOMA, ASS IGNOR TO OIL WELL SUPlPLY COMPANY,

OF PITTSBURGH, PENNSYLVANIA, A CORPORATION, OF PENNSYLVANIA.

TUBING HANGER.

Application filed November 6, 1926. Serial ml 146,687.

Tubing hangers are used in connection with casing-heads secured to the upper end of a r well casing and, as heretofore construgted, considerable trouble has been met with in the use of the hangers.

Among the objects of the present invention are; to provide a tubing hanger of'simhanger includes an adjustable upper or capple and desirable construction embodying e-fficient packing means for preventing fluids under pressure from escaping between the casing-head and the tubing and one capable of being easily assembled and applied to the casing-head; a construction having a double tubing support; and a construction that eliminates the possibility of the tubing dropping into the well in case of fire or a bad wind storm destroying the parts or appliances employed above the casing-head.

In the accompanying drawings, which illustrate an application of my invention:

Figure 1, is a vertical sectional View of a tubing hanger embodying my invention and shown applied .to a casing head; and

Figure 2, a detail plan view of the slips. Referring to the drawings, 5 designates a hollow casing-head designed to be attached to the upper end of a casing section 6'. Head 5 is provided with an annular recess 7 formed in its upper end and with a second recessa packing receiving recess 8, into which a packing element 9 is placed. The casinghead is also interiorly threaded at its lower end as indicated by the numeral 10, thus enabling it to be secured to an exteriorly threaded portion 11 of the casing section 6.

12 designates a section of the well'tubing'; this tubing is of the usual and well known character and is designed to be introduced into the well or the casing and be pulled therefrom in the usual manner.

The tubing hanger as illustrated and as preferred includes a lower hollow member 13.

Member 13 is adapted to be positioned on the 13 is entered in the casing-head, to engage the packing 9 carried by the casing-head.

By means of this construction a fluid tight joint is'efi'ected between member 13 and the casing-head and thus successfully pack'olf under pressure 1n cases wheregasor a1r 1s.

being used to flow a well and at the same time the construction will not interfere in any way with the gas and oil outlets 5 in the casinghead.

In addition to the member 13 the tubing member 16 and a coupling-member 17. Capmember 16 is adjustably mounted on coupling-member 17 and is provided with a threaded portion 18 to engage an'exteriorly threaded portion 19 formed on'the member 17. Cap-member 16 also includes an annular depending part 20 having its lower end adapted to be seatednpon the upper end of member 13. 21 designates a packing interposed between members 16 and 13 to form a fluid tight joint therebetween.

Coupling 17 is provided with interior threads 22 designed to engage an upper threaded part 23 on the tubing section 12, whereby the coupling and the tubing section are connected; said coupling is also formed with an upper threaded portion 24 adapted to engage a pipe or tubing, not shown, and

16 to the desired positions on member 17. a 26 designates 'a'plurality of slips employed for gripping and aiding in supporting the suspended tubing; these slips as shown comprise two pairs, with each member of a pair connectedto the other member by means, including, a flexible handle 27. The slips may be readily inserted into the slip receiving member 13 and removed therefrom by a single operator without trouble. Attentionis called tothe fact that the m1 ing issupported b two independent mea'ns namely, the coupling memberand the adj ustable cap 16, and by the slips. This provides a double support which is very desirable.

In practice, with slips 26 suspending the tubing, cap member 16 is screwed down on the coupling member 17, and the screwing down of the cap member 16 places it in a fixed position where it has metal to metal bearing contact on the upper surface of slipmember, slips in said member, a tubmg couthe load from the slips 26, resulting in the distribution of the support of the load on the slips and on the cap and coupling member constituting the upper portion of the hanger.

After cap member 16 is set at the desired position, the slips assume awedge position in the spider and against the pipe. It will thus be seen that this construction provides two positive independent supports for the tubing at all times.

I claim as my invention:

1. In a tubing hanger, a slip receiving pling engaging the tubing, and an adjustable cap member on the coupling having a bearing for rotation in fixed position on the slip receiving member, said coupling and slips operableto jointly support the tubing.

2. In a tubing hanger, a slip-receiving member, slips in said member, a tubing coupling member to engage the tubing, and a cap member adjust-ably mounted on the coupling member and adapted to be moved into and out of engagement with the slip-receiving member, said cap member being rotatable I in fixed position on the slip-receiving memher, and said parts when assembled providing dual supports for the tubing.

"3. In a tubing hanger, a slip-receiving member, slips in said member, a tubing coupling member to engage the tubing, a cap member adjustably mounted on the coupling member and adapted to be moved into and out of engagement with the slip-receiving member, and packing between the cap member and the slip-receiving member, said cap member being rotatable in fixed position on the slip-receiving member, said parts when assembled providing dual supports for the tubing.

4:. The combination with a casing-head, of a tubing hanger including a slip-receiving casing head top, slips disposed in the top, a tubing coupling member, a cap member adjustably mounted on the tubing coupling member having an outer bearing member rotatable in fixed position on the casing head top, and packing interposed between the casing head top and the said bearing mem ber, said parts when assembled cooperatingto provide a dual support for the tubing.

5. The combination with a casing-head, of

'a tubing hanger including a slip-receiving casing head top, slipsdisposed 1n the top, a

tubing coupling member, a cap member ad- ]ustably mounted on the tubing coupling .member having an outer bearing member rotatable in fixed position on the casing head top, packing interposed between the casing head top and the said bearing member, and packing interposed between the slip-receive ing member and the casing head, said parts cooperating to provide a dual support for the tubing.

6. In a tubing hanger, in combination with tubing, a slip-receiving member, slip means carried by said member to support the. tubing, and a cap in rotatable bearing contact with a transverse surface of the slip-receiw ing member initially supporting the tubing simultaneously with said slip means and independently of movement of the slip means, and a screw-threaded connection between the cap and tubing.

In testimony whereof I afiix my signature.

JOHN D. LEMEX. 

